the compound we call water is created by combining the elements hydrogen and oxygen. One molecule of water is always made up of two hydrogen atoms and one oxygen atom. This is why water is referred to as H₂O in science. Water is created when elements chemically...
atom系一种element入面最细而且不能分割的部份,而Ion是由于atom/molecule得到或者失去electron时而令atom/molecule中的正负电荷失衡,得到净正或负电荷,咁ion都系element入面最细而且不能分割的部份?polyatomic ion系多过一个 atom 的 ion,咁他算不算系compound?
A universal principle for a rational design of single-atom electrocatalysts. Nat. Catal. 1, 339–348 (2018). Article CAS Google Scholar Lundqvist, B. I., Gunnarsson, O., Hjelmberg, H. & Nørskov, J. K. Theoretical description of molecule-metal interaction and surface reactions. Surf. ...
The firstionization potentialof the iodine atom is considerably smaller than that of the lighter halogen atoms, and this is in accord with the existence of numerous compounds containing iodine in the positive oxidation states +1 (iodides), +3, +5 (iodates), and +7 (periodates). Iodine comb...
Molecule icon atom chemistry vector symbol element. ID: 260850314 收藏 加入清单 下载版权mOleks 格式矢量图 编辑图片 以图搜图 矢量:可随意调整尺寸 大图:5000× 5000 像素·42.33 cm × 42.33 cm·300dpi·JPG 了解更多 图片套餐 常见问题: 商业用途| 授权| 授权书| 发票| 合同问题...
2. The charge transporting material according to claim 1, wherein the compound has within the molecule 2 to 8 pyridyl rings, and the substituents on each ring may be the same or different. 3. The charge transporting material according to claim 1, wherein the molecular weight of the compound...
Alternatively, an electrically conductive high molecule (an electrically conductive polymer) can be used for the second electrode 103. Specifically, PEDOT (polyethylenedioxythiophene) and the like can be given. When a layer included in the EL layer 102 which is formed in contact with the second el...
The number of “ring atom” referred to herein means the number of the atoms which are members forming the ring itself (for example, a monocyclic ring, a fused ring, and a ring assembly) of a compound in which a series of atoms is bonded to form the ring (for example, a monocyclic ...
To provide a novel carbazole compound that has an excellent carrier-transport property and can be used for a transport layer or as a host material in a light-emitting element. Furth
The selection of the type and size of the substituents of DYE can be made in order to provide a partition coefficient of DYE which permits the desired degree of diffusion. The term DYE also includes dye precursors wherein the described substituted nitrogen atom is an integral part of the chro...